GNU C Library master sources branch master updated. glibc-2.22-542-gd709042

jsm28@sourceware.org jsm28@sourceware.org
Fri Nov 20 22:51:00 GMT 2015


This is an automated email from the git hooks/post-receive script. It was
generated because a ref change was pushed to the repository containing
the project "GNU C Library master sources".

The branch, master has been updated
       via  d709042a6e5ab3c360280faad6f9538a34dc8eea (commit)
      from  8c873bf0190740ac1102e13ff7aeb6c08048abfd (commit)

Those revisions listed above that are new to this repository have
not appeared on any other notification email; so we list those
revisions in full, below.

- Log -----------------------------------------------------------------
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=d709042a6e5ab3c360280faad6f9538a34dc8eea

commit d709042a6e5ab3c360280faad6f9538a34dc8eea
Author: Joseph Myers <joseph@codesourcery.com>
Date:   Fri Nov 20 22:49:59 2015 +0000

    Fix lgamma setting signgam for ISO C (bug 15421).
    
    The lgamma (and likewise lgammaf, lgammal) function wrongly sets the
    signgam variable even when building for strict ISO C conformance
    (-std=c99 / -std=c11), although the user may define such a variable
    and it's only in the implementation namespace for POSIX with XSI
    extensions enabled.
    
    Following discussions starting at
    <https://sourceware.org/ml/libc-alpha/2013-04/msg00767.html> and
    <https://sourceware.org/ml/libc-alpha/2015-10/msg00844.html>, it seems
    that the safest approach for fixing this particular issue is for
    signgam to become a weak alias for a newly exported symbol __signgam,
    with the library functions only setting __signgam, at which point
    static linker magic will preserve the alias for newly linked binaries
    that refer to the library's signgam rather than defining their own,
    while breaking the alias for programs that define their own signgam,
    with new symbol versions for lgamma functions and with compat symbols
    for existing binaries that set both signgam and __signgam.
    
    This patch implements that approach for the fix.  signgam is made into
    a weak alias.  The four symbols __signgam, lgamma, lgammaf, lgammal
    get new symbol versions at version GLIBC_2.23, with the existing
    versions of lgamma, lgammaf and lgammal becoming compat symbols.
    
    When the compat versions are built, gamma, gammaf and gammal are
    aliases for the compat versions (i.e. always set signgam); this is OK
    as they are not ISO C functions, and avoids adding new symbol versions
    for them unnecessarily.  When the compat versions are not built
    (i.e. for static linking and for future glibc ports), gamma, gammaf
    and gammal are aliases for the new versions that set __signgam.  The
    ldbl-opt versions are updated accordingly.
    
    The lgamma wrappers are adjusted so that the same source files,
    included from different files with different definitions of
    USE_AS_COMPAT, can build either the new versions or the compat
    versions.  Similar changes are made to the ia64 versions (untested).
    
    Tests are added that the lgamma functions do not interfere with a user
    variable called signgam for ISO C, with various choices for the size
    of that variable, whether it is initialized, and for static and
    dynamic linking.  The conformtest whitelist entry is removed as well.
    
    Tested for x86_64, x86, mips64 and powerpc, including looking at
    objdump --dynamic-syms output to make sure the expected sets of
    symbols were aliases.  Also spot-tested that a binary built with old
    glibc works properly (i.e. gets signgam set) when run with new glibc.
    
    	[BZ #15421]
    	* sysdeps/ieee754/s_signgam.c (signgam): Rename to __signgam,
    	initialize with 0 and define as weak alias of __signgam.
    	* include/math.h [!_ISOMAC] (__signgam): Declare.
    	* math/Makefile (libm-calls): Add w_lgamma_compat.
    	(tests): Add test-signgam-uchar, test-signgam-uchar-init,
    	test-signgam-uint, test-signgam-uint-init, test-signgam-ullong and
    	test-signgam-ullong-init.
    	(tests-static): Add test-signgam-uchar-static,
    	test-signgam-uchar-init-static, test-signgam-uint-static,
    	test-signgam-uint-init-static, test-signgam-ullong-static and
    	test-signgam-ullong-init-static.
    	(CFLAGS-test-signgam-uchar.c): New variable.
    	(CFLAGS-test-signgam-uchar-init.c): Likewise.
    	(CFLAGS-test-signgam-uchar-static.c): Likewise.
    	(CFLAGS-test-signgam-uchar-init-static.c): Likewise.
    	(CFLAGS-test-signgam-uint.c): Likewise.
    	(CFLAGS-test-signgam-uint-init.c): Likewise.
    	(CFLAGS-test-signgam-uint-static.c): Likewise.
    	(CFLAGS-test-signgam-uint-init-static.c): Likewise.
    	(CFLAGS-test-signgam-ullong.c): Likewise.
    	(CFLAGS-test-signgam-ullong-init.c): Likewise.
    	(CFLAGS-test-signgam-ullong-static.c): Likewise.
    	(CFLAGS-test-signgam-ullong-init-static.c): Likewise.
    	* math/Versions (libm): Add GLIBC_2.23.
    	* math/lgamma-compat.h: New file.
    	* math/test-signgam-main.c: Likewise.
    	* math/test-signgam-uchar-init-static.c: Likewise.
    	* math/test-signgam-uchar-init.c: Likewise.
    	* math/test-signgam-uchar-static.c: Likewise.
    	* math/test-signgam-uchar.c: Likewise.
    	* math/test-signgam-uint-init-static.c: Likewise.
    	* math/test-signgam-uint-init.c: Likewise.
    	* math/test-signgam-uint-static.c: Likewise.
    	* math/test-signgam-uint.c: Likewise.
    	* math/test-signgam-ullong-init-static.c: Likewise.
    	* math/test-signgam-ullong-init.c: Likewise.
    	* math/test-signgam-ullong-static.c: Likewise.
    	* math/test-signgam-ullong.c: Likewise.
    	* math/w_lgamma.c: Rename to w_lgamma_main.c and replace by
    	wrapper of w_lgamma_main.c.
    	* math/w_lgamma_compat.c: New file.
    	* math/w_lgamma_compatf.c: Likewise.
    	* math/w_lgamma_compatl.c: Likewise.
    	* math/w_lgamma_main.c: New file.  Based on w_lgamma.c.  Include
    	<lgamma-compat.h>.  Condition contents on [BUILD_LGAMMA].  Support
    	defining compatibility symbols.
    	(__lgamma): Change to LGFUNC (__lgamma).  Use CALL_LGAMMA.
    	* math/w_lgammaf.c: Rename to w_lgammaf_main.c and replace by
    	wrapper of w_lgammaf_main.c.
    	* math/w_lgammaf_main.c: New file.  Based on w_lgammaf.c.  Include
    	<lgamma-compat.h>.  Condition contents on [BUILD_LGAMMA].  Support
    	defining compatibility symbols.
    	(__lgammaf): Change to LGFUNC (__lgammaf).  Use CALL_LGAMMA.
    	* math/w_lgammal.c: Rename to w_lgammal_main.c and replace by
    	wrapper of w_lgammal_main.c.
    	* math/w_lgammal_main.c: New file.  Based on w_lgammal.c.  Include
    	<lgamma-compat.h>.  Condition contents on [BUILD_LGAMMA].  Support
    	defining compatibility symbols.
    	(__lgammal): Change to LGFUNC (__lgammal).  Use CALL_LGAMMA.
    	* sysdeps/ia64/fpu/lgamma-compat.h: New file.
    	* sysdeps/ia64/fpu/w_lgamma.c: Move to ....
    	* sysdeps/ia64/fpu/w_lgamma_main.c: ...here.  Include
    	<lgamma-compat.h>.
    	(__ieee754_lgamma): Change to LGFUNC (lgamma).  Use CALL_LGAMMA.
    	(__ieee754_gamma): Define as alias.
    	* sysdeps/ia64/fpu/w_lgammaf.c: Move to ....
    	* sysdeps/ia64/fpu/w_lgammaf_main.c: ...here.  Include
    	<lgamma-compat.h>.
    	(__ieee754_lgammaf): Change to LGFUNC (lgammaf).  Use CALL_LGAMMA.
    	(__ieee754_gammaf): Define as alias.
    	* sysdeps/ia64/fpu/w_lgammal.c: Move to ....
    	* sysdeps/ia64/fpu/w_lgammal_main.c: ...here.  Include
    	<lgamma-compat.h>.
    	(__ieee754_lgammal): Change to LGFUNC (lgammal).  Use CALL_LGAMMA.
    	(__ieee754_gammal): Define as alias.
    	* sysdeps/ieee754/ldbl-opt/w_lgamma.c: Move to ....
    	* sysdeps/ieee754/ldbl-opt/w_lgamma_compat.c: ...here.  Include
    	<math/w_lgamma_compat.c>.
    	[LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)] (__lgammal_dbl_compat):
    	Define as alias of __lgamma_compat and use in defining lgammal.
    	* sysdeps/ieee754/ldbl-opt/w_lgammal.c: Move to ....
    	* sysdeps/ieee754/ldbl-opt/w_lgamma_compatl.c: ...here.  Include
    	<math/lgamma-compat.h> and <math/w_lgamma_compatl.c>.
    	(USE_AS_COMPAT): New macro.
    	(LGAMMA_OLD_VER): Undefine and redefine.
    	(lgammal): Do not define here.
    	(gammal): Only define here if [GAMMA_ALIAS].
    	* conform/linknamespace.pl (@whitelist): Remove signgam.
    	* sysdeps/nacl/libm.abilist: Update.
    	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
    	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
    	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
    	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
    	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
    	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
    	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
    	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
    	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
    	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
    	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
    	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
    	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
    	Likewise.
    	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
    	Likewise.
    	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
    	Likewise.
    	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
    	Likewise.
    	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
    	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
    	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
    	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
    	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
    	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
    	Likewise.
    	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
    	Likewise.
    	* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
    	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
    	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.

diff --git a/ChangeLog b/ChangeLog
index 4e12f20..5181879 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,128 @@
+2015-11-20  Joseph Myers  <joseph@codesourcery.com>
+
+	[BZ #15421]
+	* sysdeps/ieee754/s_signgam.c (signgam): Rename to __signgam,
+	initialize with 0 and define as weak alias of __signgam.
+	* include/math.h [!_ISOMAC] (__signgam): Declare.
+	* math/Makefile (libm-calls): Add w_lgamma_compat.
+	(tests): Add test-signgam-uchar, test-signgam-uchar-init,
+	test-signgam-uint, test-signgam-uint-init, test-signgam-ullong and
+	test-signgam-ullong-init.
+	(tests-static): Add test-signgam-uchar-static,
+	test-signgam-uchar-init-static, test-signgam-uint-static,
+	test-signgam-uint-init-static, test-signgam-ullong-static and
+	test-signgam-ullong-init-static.
+	(CFLAGS-test-signgam-uchar.c): New variable.
+	(CFLAGS-test-signgam-uchar-init.c): Likewise.
+	(CFLAGS-test-signgam-uchar-static.c): Likewise.
+	(CFLAGS-test-signgam-uchar-init-static.c): Likewise.
+	(CFLAGS-test-signgam-uint.c): Likewise.
+	(CFLAGS-test-signgam-uint-init.c): Likewise.
+	(CFLAGS-test-signgam-uint-static.c): Likewise.
+	(CFLAGS-test-signgam-uint-init-static.c): Likewise.
+	(CFLAGS-test-signgam-ullong.c): Likewise.
+	(CFLAGS-test-signgam-ullong-init.c): Likewise.
+	(CFLAGS-test-signgam-ullong-static.c): Likewise.
+	(CFLAGS-test-signgam-ullong-init-static.c): Likewise.
+	* math/Versions (libm): Add GLIBC_2.23.
+	* math/lgamma-compat.h: New file.
+	* math/test-signgam-main.c: Likewise.
+	* math/test-signgam-uchar-init-static.c: Likewise.
+	* math/test-signgam-uchar-init.c: Likewise.
+	* math/test-signgam-uchar-static.c: Likewise.
+	* math/test-signgam-uchar.c: Likewise.
+	* math/test-signgam-uint-init-static.c: Likewise.
+	* math/test-signgam-uint-init.c: Likewise.
+	* math/test-signgam-uint-static.c: Likewise.
+	* math/test-signgam-uint.c: Likewise.
+	* math/test-signgam-ullong-init-static.c: Likewise.
+	* math/test-signgam-ullong-init.c: Likewise.
+	* math/test-signgam-ullong-static.c: Likewise.
+	* math/test-signgam-ullong.c: Likewise.
+	* math/w_lgamma.c: Rename to w_lgamma_main.c and replace by
+	wrapper of w_lgamma_main.c.
+	* math/w_lgamma_compat.c: New file.
+	* math/w_lgamma_compatf.c: Likewise.
+	* math/w_lgamma_compatl.c: Likewise.
+	* math/w_lgamma_main.c: New file.  Based on w_lgamma.c.  Include
+	<lgamma-compat.h>.  Condition contents on [BUILD_LGAMMA].  Support
+	defining compatibility symbols.
+	(__lgamma): Change to LGFUNC (__lgamma).  Use CALL_LGAMMA.
+	* math/w_lgammaf.c: Rename to w_lgammaf_main.c and replace by
+	wrapper of w_lgammaf_main.c.
+	* math/w_lgammaf_main.c: New file.  Based on w_lgammaf.c.  Include
+	<lgamma-compat.h>.  Condition contents on [BUILD_LGAMMA].  Support
+	defining compatibility symbols.
+	(__lgammaf): Change to LGFUNC (__lgammaf).  Use CALL_LGAMMA.
+	* math/w_lgammal.c: Rename to w_lgammal_main.c and replace by
+	wrapper of w_lgammal_main.c.
+	* math/w_lgammal_main.c: New file.  Based on w_lgammal.c.  Include
+	<lgamma-compat.h>.  Condition contents on [BUILD_LGAMMA].  Support
+	defining compatibility symbols.
+	(__lgammal): Change to LGFUNC (__lgammal).  Use CALL_LGAMMA.
+	* sysdeps/ia64/fpu/lgamma-compat.h: New file.
+	* sysdeps/ia64/fpu/w_lgamma.c: Move to ....
+	* sysdeps/ia64/fpu/w_lgamma_main.c: ...here.  Include
+	<lgamma-compat.h>.
+	(__ieee754_lgamma): Change to LGFUNC (lgamma).  Use CALL_LGAMMA.
+	(__ieee754_gamma): Define as alias.
+	* sysdeps/ia64/fpu/w_lgammaf.c: Move to ....
+	* sysdeps/ia64/fpu/w_lgammaf_main.c: ...here.  Include
+	<lgamma-compat.h>.
+	(__ieee754_lgammaf): Change to LGFUNC (lgammaf).  Use CALL_LGAMMA.
+	(__ieee754_gammaf): Define as alias.
+	* sysdeps/ia64/fpu/w_lgammal.c: Move to ....
+	* sysdeps/ia64/fpu/w_lgammal_main.c: ...here.  Include
+	<lgamma-compat.h>.
+	(__ieee754_lgammal): Change to LGFUNC (lgammal).  Use CALL_LGAMMA.
+	(__ieee754_gammal): Define as alias.
+	* sysdeps/ieee754/ldbl-opt/w_lgamma.c: Move to ....
+	* sysdeps/ieee754/ldbl-opt/w_lgamma_compat.c: ...here.  Include
+	<math/w_lgamma_compat.c>.
+	[LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)] (__lgammal_dbl_compat):
+	Define as alias of __lgamma_compat and use in defining lgammal.
+	* sysdeps/ieee754/ldbl-opt/w_lgammal.c: Move to ....
+	* sysdeps/ieee754/ldbl-opt/w_lgamma_compatl.c: ...here.  Include
+	<math/lgamma-compat.h> and <math/w_lgamma_compatl.c>.
+	(USE_AS_COMPAT): New macro.
+	(LGAMMA_OLD_VER): Undefine and redefine.
+	(lgammal): Do not define here.
+	(gammal): Only define here if [GAMMA_ALIAS].
+	* conform/linknamespace.pl (@whitelist): Remove signgam.
+	* sysdeps/nacl/libm.abilist: Update.
+	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
+	Likewise.
+	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
+	Likewise.
+	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
+	Likewise.
+	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
+	Likewise.
+	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
+	Likewise.
+	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
+	Likewise.
+	* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
+	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
+
 2015-11-20  Adhemerval Zanella  <adhemerval.zanella@linaro.org>
 
 	[BZ #16364]
diff --git a/NEWS b/NEWS
index 4c00e14..df8ad62 100644
--- a/NEWS
+++ b/NEWS
@@ -42,6 +42,12 @@ Version 2.23
 * Optimized string, wcsmbs and memory functions for IBM z13.
   Implemented by Stefan Liebler.
 
+* Newly linked programs that define a variable called signgam will no longer
+  have it set by the lgamma, lgammaf and lgammal functions.  Programs that
+  require signgam to be set by those functions must ensure that they use the
+  variable provided by the GNU C Library and declared in <math.h>, without
+  defining their own copy.
+
 * The minimum GCC version that can be used to build this version of the GNU
   C Library is GCC 4.7.  Older GCC versions, and non-GNU compilers, can
   still be used to compile programs using the GNU C Library.
diff --git a/conform/linknamespace.pl b/conform/linknamespace.pl
index 94ebfd4..d4b3142 100644
--- a/conform/linknamespace.pl
+++ b/conform/linknamespace.pl
@@ -40,8 +40,6 @@ close (STDSYMS) || die ("close $stdsyms_file: $!\n");
 
 # The following whitelisted symbols are also allowed for now.
 #
-# * Bug 15421: lgamma wrongly sets signgam for ISO C.
-#
 # * Bug 17576: stdin, stdout, stderr only reserved with external
 # linkage when stdio.h included (and possibly not then), not
 # generally.
@@ -52,7 +50,7 @@ close (STDSYMS) || die ("close $stdsyms_file: $!\n");
 # * False positive: matherr only used conditionally.  matherrf/matherrl are used
 # by IA64 too for the same reason.
 #
-@whitelist = qw(signgam stdin stdout stderr re_syntax_options matherr matherrf
+@whitelist = qw(stdin stdout stderr re_syntax_options matherr matherrf
 		matherrl);
 foreach my $sym (@whitelist) {
   $stdsyms{$sym} = 1;
diff --git a/include/math.h b/include/math.h
index b28c441..ba7bba0 100644
--- a/include/math.h
+++ b/include/math.h
@@ -6,6 +6,8 @@
 /* Now define the internal interfaces.  */
 extern int __matherr (struct exception *__exc);
 
+extern int __signgam;
+
 # if IS_IN (libc) || IS_IN (libm)
 hidden_proto (__finite)
 hidden_proto (__isinf)
diff --git a/math/Makefile b/math/Makefile
index 06412f3..0ff3baa 100644
--- a/math/Makefile
+++ b/math/Makefile
@@ -62,7 +62,8 @@ libm-calls = e_acos e_acosh e_asin e_atan2 e_atanh e_cosh e_exp e_fmod	\
 	     s_casinh s_cacosh s_catanh s_csqrt s_cpow s_cproj s_clog10 \
 	     s_fma s_lrint s_llrint s_lround s_llround e_exp10 w_log2	\
 	     s_issignaling $(calls:s_%=m_%) x2y2m1 k_casinh	\
-	     gamma_product k_standard lgamma_neg lgamma_product
+	     gamma_product k_standard lgamma_neg lgamma_product		\
+	     w_lgamma_compat
 
 dbl-only-routines := branred doasin dosincos halfulp mpa mpatan2	\
 		     mpatan mpexp mplog mpsqrt mptan sincos32 slowexp	\
@@ -110,8 +111,13 @@ tests = test-matherr test-fenv atest-exp atest-sincos atest-exp2 basic-test \
 	test-fenv-tls test-fenv-preserve test-fenv-return test-fenvinline \
 	test-nearbyint-except test-fenv-clear test-signgam-finite \
 	test-signgam-finite-c99 test-signgam-finite-c11 \
-	test-nearbyint-except-2 $(tests-static)
-tests-static = test-fpucw-static test-fpucw-ieee-static
+	test-nearbyint-except-2 test-signgam-uchar test-signgam-uchar-init \
+	test-signgam-uint test-signgam-uint-init test-signgam-ullong \
+	test-signgam-ullong-init $(tests-static)
+tests-static = test-fpucw-static test-fpucw-ieee-static \
+	       test-signgam-uchar-static test-signgam-uchar-init-static \
+	       test-signgam-uint-static test-signgam-uint-init-static \
+	       test-signgam-ullong-static test-signgam-ullong-init-static
 # We do the `long double' tests only if this data type is available and
 # distinct from `double'.
 test-longdouble-yes = test-ldouble test-ildoubl test-ldouble-finite
@@ -200,6 +206,18 @@ CPPFLAGS-test-ildoubl.c = -U__LIBC_INTERNAL_MATH_INLINES \
 CFLAGS-test-signgam-finite.c = -ffinite-math-only
 CFLAGS-test-signgam-finite-c99.c = -ffinite-math-only -std=c99
 CFLAGS-test-signgam-finite-c11.c = -ffinite-math-only -std=c11
+CFLAGS-test-signgam-uchar.c = -std=c99
+CFLAGS-test-signgam-uchar-init.c = -std=c99
+CFLAGS-test-signgam-uchar-static.c = -std=c99
+CFLAGS-test-signgam-uchar-init-static.c = -std=c99
+CFLAGS-test-signgam-uint.c = -std=c99
+CFLAGS-test-signgam-uint-init.c = -std=c99
+CFLAGS-test-signgam-uint-static.c = -std=c99
+CFLAGS-test-signgam-uint-init-static.c = -std=c99
+CFLAGS-test-signgam-ullong.c = -std=c99
+CFLAGS-test-signgam-ullong-init.c = -std=c99
+CFLAGS-test-signgam-ullong-static.c = -std=c99
+CFLAGS-test-signgam-ullong-init-static.c = -std=c99
 
 # The -lieee module sets the _LIB_VERSION_ switch to IEEE mode
 # for error handling in the -lm functions.
diff --git a/math/Versions b/math/Versions
index 551abec..e6a597c 100644
--- a/math/Versions
+++ b/math/Versions
@@ -203,4 +203,11 @@ libm {
   GLIBC_2.18 {
     __issignaling; __issignalingf; __issignalingl;
   }
+  GLIBC_2.23 {
+    # The __signgam name must be exported for the signgam weak alias
+    # to work.  New symbol versions of lgamma* that set __signgam are
+    # needed to preserve compatibility with old binaries that have a
+    # dynamic symbol for signgam but not __signgam.
+    lgamma; lgammaf; lgammal; __signgam;
+  }
 }
diff --git a/math/lgamma-compat.h b/math/lgamma-compat.h
new file mode 100644
index 0000000..1393f0e
--- /dev/null
+++ b/math/lgamma-compat.h
@@ -0,0 +1,73 @@
+/* ABI compatibility for lgamma functions.
+   Copyright (C) 2015 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef LGAMMA_COMPAT_H
+#define LGAMMA_COMPAT_H 1
+
+#include <shlib-compat.h>
+
+/* XSI POSIX requires lgamma to set signgam, but ISO C does not permit
+   this.  Namespace issues can be avoided if the functions set
+   __signgam and signgam is a weak alias, but this only works if both
+   signgam and __signgam were exported from the glibc version the
+   program was linked against.  Before glibc 2.23, lgamma functions
+   set signgam which was not a weak alias for __signgam, so old
+   binaries have dynamic symbols for signgam only and the versions of
+   lgamma used for old binaries must set both signgam and __signgam.
+   Those versions also do a check of _LIB_VERSION != _ISOC_ to match
+   old glibc.
+
+   Users of this file define USE_AS_COMPAT to 0 when building the main
+   version of lgamma, 1 when building the compatibility version.  */
+
+#define LGAMMA_OLD_VER GLIBC_2_0
+#define LGAMMA_NEW_VER GLIBC_2_23
+#define HAVE_LGAMMA_COMPAT SHLIB_COMPAT (libm, LGAMMA_OLD_VER, LGAMMA_NEW_VER)
+
+/* Whether to build this version at all.  */
+#define BUILD_LGAMMA (HAVE_LGAMMA_COMPAT || !USE_AS_COMPAT)
+
+/* The name to use for this version.  */
+#if USE_AS_COMPAT
+# define LGFUNC(FUNC) FUNC ## _compat
+#else
+# define LGFUNC(FUNC) FUNC
+#endif
+
+/* If there is a compatibility version, gamma (not an ISO C function,
+   so never a problem for it to set signgam) points directly to it
+   rather than having separate versions.  */
+#define GAMMA_ALIAS (USE_AS_COMPAT ? HAVE_LGAMMA_COMPAT : !HAVE_LGAMMA_COMPAT)
+
+/* How to call the underlying lgamma_r function.  */
+#define CALL_LGAMMA(TYPE, FUNC, ARG)			\
+  ({							\
+    TYPE lgamma_tmp;					\
+    int local_signgam;					\
+    if (USE_AS_COMPAT)					\
+      {							\
+	lgamma_tmp = FUNC ((ARG), &local_signgam);	\
+	if (_LIB_VERSION != _ISOC_)			\
+	  signgam = __signgam = local_signgam;		\
+      }							\
+    else						\
+      lgamma_tmp = FUNC ((ARG), &__signgam);		\
+    lgamma_tmp;						\
+  })
+
+#endif /* lgamma-compat.h.  */
diff --git a/math/test-signgam-main.c b/math/test-signgam-main.c
new file mode 100644
index 0000000..6aed7f4
--- /dev/null
+++ b/math/test-signgam-main.c
@@ -0,0 +1,71 @@
+/* Test lgamma functions do not set signgam for ISO C.
+   Copyright (C) 2015 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#undef _LIBC
+#undef _GNU_SOURCE
+#define _ISOMAC
+
+#include <math.h>
+#include <stdio.h>
+
+#define INITVAL ((TYPE) -1 / 3)
+
+#if DO_INIT
+TYPE signgam = INITVAL;
+#else
+TYPE signgam;
+#endif
+
+#define RUN_TESTS(FUNC, TYPE)					\
+  do								\
+    {								\
+      volatile TYPE a, b, c __attribute__ ((unused));		\
+      a = 0.5;							\
+      b = -0.5;							\
+      signgam = INITVAL;					\
+      c = FUNC (a);						\
+      if (signgam == INITVAL)					\
+	puts ("PASS: " #FUNC " (0.5) setting signgam");		\
+      else							\
+	{							\
+	  puts ("FAIL: " #FUNC " (0.5) setting signgam");	\
+	  result = 1;						\
+	}							\
+      signgam = INITVAL;					\
+      c = FUNC (b);						\
+      if (signgam == INITVAL)					\
+	puts ("PASS: " #FUNC " (-0.5) setting signgam");	\
+      else							\
+	{							\
+	  puts ("FAIL: " #FUNC " (-0.5) setting signgam");	\
+	  result = 1;						\
+	}							\
+    }								\
+  while (0)
+
+int
+main (void)
+{
+  int result = 0;
+  RUN_TESTS (lgammaf, float);
+  RUN_TESTS (lgamma, double);
+#ifndef NO_LONG_DOUBLE
+  RUN_TESTS (lgammal, long double);
+#endif
+  return result;
+}
diff --git a/math/test-signgam-uchar-init-static.c b/math/test-signgam-uchar-init-static.c
new file mode 100644
index 0000000..43ac502
--- /dev/null
+++ b/math/test-signgam-uchar-init-static.c
@@ -0,0 +1 @@
+#include "test-signgam-uchar-init.c"
diff --git a/math/test-signgam-uchar-init.c b/math/test-signgam-uchar-init.c
new file mode 100644
index 0000000..4eea51e
--- /dev/null
+++ b/math/test-signgam-uchar-init.c
@@ -0,0 +1,3 @@
+#define TYPE unsigned char
+#define DO_INIT 1
+#include "test-signgam-main.c"
diff --git a/math/test-signgam-uchar-static.c b/math/test-signgam-uchar-static.c
new file mode 100644
index 0000000..a1e655d
--- /dev/null
+++ b/math/test-signgam-uchar-static.c
@@ -0,0 +1 @@
+#include "test-signgam-uchar.c"
diff --git a/math/test-signgam-uchar.c b/math/test-signgam-uchar.c
new file mode 100644
index 0000000..b613fd2
--- /dev/null
+++ b/math/test-signgam-uchar.c
@@ -0,0 +1,3 @@
+#define TYPE unsigned char
+#define DO_INIT 0
+#include "test-signgam-main.c"
diff --git a/math/test-signgam-uint-init-static.c b/math/test-signgam-uint-init-static.c
new file mode 100644
index 0000000..1afb205
--- /dev/null
+++ b/math/test-signgam-uint-init-static.c
@@ -0,0 +1 @@
+#include "test-signgam-uint-init.c"
diff --git a/math/test-signgam-uint-init.c b/math/test-signgam-uint-init.c
new file mode 100644
index 0000000..e3d064f
--- /dev/null
+++ b/math/test-signgam-uint-init.c
@@ -0,0 +1,3 @@
+#define TYPE unsigned int
+#define DO_INIT 1
+#include "test-signgam-main.c"
diff --git a/math/test-signgam-uint-static.c b/math/test-signgam-uint-static.c
new file mode 100644
index 0000000..0aa0c24
--- /dev/null
+++ b/math/test-signgam-uint-static.c
@@ -0,0 +1 @@
+#include "test-signgam-uint.c"
diff --git a/math/test-signgam-uint.c b/math/test-signgam-uint.c
new file mode 100644
index 0000000..4ab783f
--- /dev/null
+++ b/math/test-signgam-uint.c
@@ -0,0 +1,3 @@
+#define TYPE unsigned int
+#define DO_INIT 0
+#include "test-signgam-main.c"
diff --git a/math/test-signgam-ullong-init-static.c b/math/test-signgam-ullong-init-static.c
new file mode 100644
index 0000000..84e0a19
--- /dev/null
+++ b/math/test-signgam-ullong-init-static.c
@@ -0,0 +1 @@
+#include "test-signgam-ullong-init.c"
diff --git a/math/test-signgam-ullong-init.c b/math/test-signgam-ullong-init.c
new file mode 100644
index 0000000..f32957f
--- /dev/null
+++ b/math/test-signgam-ullong-init.c
@@ -0,0 +1,3 @@
+#define TYPE unsigned long long int
+#define DO_INIT 1
+#include "test-signgam-main.c"
diff --git a/math/test-signgam-ullong-static.c b/math/test-signgam-ullong-static.c
new file mode 100644
index 0000000..13e4385
--- /dev/null
+++ b/math/test-signgam-ullong-static.c
@@ -0,0 +1 @@
+#include "test-signgam-ullong.c"
diff --git a/math/test-signgam-ullong.c b/math/test-signgam-ullong.c
new file mode 100644
index 0000000..5d4f27e
--- /dev/null
+++ b/math/test-signgam-ullong.c
@@ -0,0 +1,3 @@
+#define TYPE unsigned long long int
+#define DO_INIT 0
+#include "test-signgam-main.c"
diff --git a/math/w_lgamma.c b/math/w_lgamma.c
index a82b5e3..8bb33e0 100644
--- a/math/w_lgamma.c
+++ b/math/w_lgamma.c
@@ -1,49 +1,2 @@
-/* @(#)w_lgamma.c 5.1 93/09/24 */
-/*
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunPro, a Sun Microsystems, Inc. business.
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice
- * is preserved.
- * ====================================================
- */
-
-/* double lgamma(double x)
- * Return the logarithm of the Gamma function of x.
- *
- * Method: call __ieee754_lgamma_r
- */
-
-#include <math.h>
-#include <math_private.h>
-
-double
-__lgamma(double x)
-{
-	int local_signgam = 0;
-	double y = __ieee754_lgamma_r(x,
-				      _LIB_VERSION != _ISOC_
-				      /* ISO C99 does not define the
-					 global variable.  */
-				      ? &signgam
-				      : &local_signgam);
-	if(__builtin_expect(!isfinite(y), 0)
-	   && isfinite(x) && _LIB_VERSION != _IEEE_)
-		return __kernel_standard(x, x,
-					 __floor(x)==x&&x<=0.0
-					 ? 15 /* lgamma pole */
-					 : 14); /* lgamma overflow */
-
-	return y;
-}
-weak_alias (__lgamma, lgamma)
-strong_alias (__lgamma, __gamma)
-weak_alias (__gamma, gamma)
-#ifdef NO_LONG_DOUBLE
-strong_alias (__lgamma, __lgammal)
-weak_alias (__lgamma, lgammal)
-strong_alias (__gamma, __gammal)
-weak_alias (__gamma, gammal)
-#endif
+#define USE_AS_COMPAT 0
+#include <w_lgamma_main.c>
diff --git a/math/w_lgamma_compat.c b/math/w_lgamma_compat.c
new file mode 100644
index 0000000..30510a5
--- /dev/null
+++ b/math/w_lgamma_compat.c
@@ -0,0 +1,2 @@
+#define USE_AS_COMPAT 1
+#include <w_lgamma_main.c>
diff --git a/math/w_lgamma_compatf.c b/math/w_lgamma_compatf.c
new file mode 100644
index 0000000..e59586f
--- /dev/null
+++ b/math/w_lgamma_compatf.c
@@ -0,0 +1,2 @@
+#define USE_AS_COMPAT 1
+#include <w_lgammaf_main.c>
diff --git a/math/w_lgamma_compatl.c b/math/w_lgamma_compatl.c
new file mode 100644
index 0000000..55ca364
--- /dev/null
+++ b/math/w_lgamma_compatl.c
@@ -0,0 +1,2 @@
+#define USE_AS_COMPAT 1
+#include <w_lgammal_main.c>
diff --git a/math/w_lgamma.c b/math/w_lgamma_main.c
similarity index 60%
copy from math/w_lgamma.c
copy to math/w_lgamma_main.c
index a82b5e3..cdea331 100644
--- a/math/w_lgamma.c
+++ b/math/w_lgamma_main.c
@@ -19,16 +19,13 @@
 #include <math.h>
 #include <math_private.h>
 
+#include <lgamma-compat.h>
+
+#if BUILD_LGAMMA
 double
-__lgamma(double x)
+LGFUNC (__lgamma) (double x)
 {
-	int local_signgam = 0;
-	double y = __ieee754_lgamma_r(x,
-				      _LIB_VERSION != _ISOC_
-				      /* ISO C99 does not define the
-					 global variable.  */
-				      ? &signgam
-				      : &local_signgam);
+	double y = CALL_LGAMMA (double, __ieee754_lgamma_r, x);
 	if(__builtin_expect(!isfinite(y), 0)
 	   && isfinite(x) && _LIB_VERSION != _IEEE_)
 		return __kernel_standard(x, x,
@@ -38,12 +35,25 @@ __lgamma(double x)
 
 	return y;
 }
-weak_alias (__lgamma, lgamma)
-strong_alias (__lgamma, __gamma)
-weak_alias (__gamma, gamma)
-#ifdef NO_LONG_DOUBLE
+# if USE_AS_COMPAT
+compat_symbol (libm, __lgamma_compat, lgamma, LGAMMA_OLD_VER);
+#  ifdef NO_LONG_DOUBLE
+strong_alias (__lgamma_compat, __lgammal_compat)
+compat_symbol (libm, __lgammal_compat, lgammal, LGAMMA_OLD_VER);
+#  endif
+# else
+versioned_symbol (libm, __lgamma, lgamma, LGAMMA_NEW_VER);
+#  ifdef NO_LONG_DOUBLE
 strong_alias (__lgamma, __lgammal)
-weak_alias (__lgamma, lgammal)
+versioned_symbol (libm, __lgammal, lgammal, LGAMMA_NEW_VER);
+#  endif
+# endif
+# if GAMMA_ALIAS
+strong_alias (LGFUNC (__lgamma), __gamma)
+weak_alias (__gamma, gamma)
+#  ifdef NO_LONG_DOUBLE
 strong_alias (__gamma, __gammal)
 weak_alias (__gamma, gammal)
+#  endif
+# endif
 #endif
diff --git a/math/w_lgammaf.c b/math/w_lgammaf.c
index dac69dd..5fc4022 100644
--- a/math/w_lgammaf.c
+++ b/math/w_lgammaf.c
@@ -1,40 +1,2 @@
-/* w_lgammaf.c -- float version of w_lgamma.c.
- * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
- */
-
-/*
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunPro, a Sun Microsystems, Inc. business.
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice
- * is preserved.
- * ====================================================
- */
-
-#include <math.h>
-#include <math_private.h>
-
-float
-__lgammaf(float x)
-{
-	int local_signgam = 0;
-	float y = __ieee754_lgammaf_r(x,
-				      _LIB_VERSION != _ISOC_
-				      /* ISO C99 does not define the
-					 global variable.  */
-				      ? &signgam
-				      : &local_signgam);
-	if(__builtin_expect(!isfinite(y), 0)
-	   && isfinite(x) && _LIB_VERSION != _IEEE_)
-		return __kernel_standard_f(x, x,
-					   __floorf(x)==x&&x<=0.0f
-					   ? 115 /* lgamma pole */
-					   : 114); /* lgamma overflow */
-
-	return y;
-}
-weak_alias (__lgammaf, lgammaf)
-strong_alias (__lgammaf, __gammaf)
-weak_alias (__gammaf, gammaf)
+#define USE_AS_COMPAT 0
+#include <w_lgammaf_main.c>
diff --git a/math/w_lgammaf.c b/math/w_lgammaf_main.c
similarity index 69%
copy from math/w_lgammaf.c
copy to math/w_lgammaf_main.c
index dac69dd..ba7ff0e 100644
--- a/math/w_lgammaf.c
+++ b/math/w_lgammaf_main.c
@@ -16,16 +16,13 @@
 #include <math.h>
 #include <math_private.h>
 
+#include <lgamma-compat.h>
+
+#if BUILD_LGAMMA
 float
-__lgammaf(float x)
+LGFUNC (__lgammaf) (float x)
 {
-	int local_signgam = 0;
-	float y = __ieee754_lgammaf_r(x,
-				      _LIB_VERSION != _ISOC_
-				      /* ISO C99 does not define the
-					 global variable.  */
-				      ? &signgam
-				      : &local_signgam);
+	float y = CALL_LGAMMA (float, __ieee754_lgammaf_r, x);
 	if(__builtin_expect(!isfinite(y), 0)
 	   && isfinite(x) && _LIB_VERSION != _IEEE_)
 		return __kernel_standard_f(x, x,
@@ -35,6 +32,13 @@ __lgammaf(float x)
 
 	return y;
 }
-weak_alias (__lgammaf, lgammaf)
-strong_alias (__lgammaf, __gammaf)
+# if USE_AS_COMPAT
+compat_symbol (libm, __lgammaf_compat, lgammaf, LGAMMA_OLD_VER);
+# else
+versioned_symbol (libm, __lgammaf, lgammaf, LGAMMA_NEW_VER);
+# endif
+# if GAMMA_ALIAS
+strong_alias (LGFUNC (__lgammaf), __gammaf)
 weak_alias (__gammaf, gammaf)
+# endif
+#endif
diff --git a/math/w_lgammal.c b/math/w_lgammal.c
index 8abe6a0..78dd9c5 100644
--- a/math/w_lgammal.c
+++ b/math/w_lgammal.c
@@ -1,47 +1,2 @@
-/* w_lgammal.c -- long double version of w_lgamma.c.
- * Conversion to long double by Ulrich Drepper,
- * Cygnus Support, drepper@cygnus.com.
- */
-
-/*
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunPro, a Sun Microsystems, Inc. business.
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice
- * is preserved.
- * ====================================================
- */
-
-/* long double lgammal(long double x)
- * Return the logarithm of the Gamma function of x.
- *
- * Method: call __ieee754_lgammal_r
- */
-
-#include <math.h>
-#include <math_private.h>
-
-long double
-__lgammal(long double x)
-{
-	int local_signgam = 0;
-	long double y = __ieee754_lgammal_r(x,
-					    _LIB_VERSION != _ISOC_
-					    /* ISO C99 does not define the
-					       global variable.  */
-					    ? &signgam
-					    : &local_signgam);
-	if(__builtin_expect(!isfinite(y), 0)
-	   && isfinite(x) && _LIB_VERSION != _IEEE_)
-		return __kernel_standard_l(x, x,
-					   __floorl(x)==x&&x<=0.0L
-					   ? 215 /* lgamma pole */
-					   : 214); /* lgamma overflow */
-
-	return y;
-}
-weak_alias (__lgammal, lgammal)
-strong_alias (__lgammal, __gammal)
-weak_alias (__gammal, gammal)
+#define USE_AS_COMPAT 0
+#include <w_lgammal_main.c>
diff --git a/math/w_lgammal.c b/math/w_lgammal_main.c
similarity index 71%
copy from math/w_lgammal.c
copy to math/w_lgammal_main.c
index 8abe6a0..c3c41f6 100644
--- a/math/w_lgammal.c
+++ b/math/w_lgammal_main.c
@@ -23,16 +23,13 @@
 #include <math.h>
 #include <math_private.h>
 
+#include <lgamma-compat.h>
+
+#if BUILD_LGAMMA
 long double
-__lgammal(long double x)
+LGFUNC (__lgammal) (long double x)
 {
-	int local_signgam = 0;
-	long double y = __ieee754_lgammal_r(x,
-					    _LIB_VERSION != _ISOC_
-					    /* ISO C99 does not define the
-					       global variable.  */
-					    ? &signgam
-					    : &local_signgam);
+	long double y = CALL_LGAMMA (long double, __ieee754_lgammal_r, x);
 	if(__builtin_expect(!isfinite(y), 0)
 	   && isfinite(x) && _LIB_VERSION != _IEEE_)
 		return __kernel_standard_l(x, x,
@@ -42,6 +39,13 @@ __lgammal(long double x)
 
 	return y;
 }
-weak_alias (__lgammal, lgammal)
-strong_alias (__lgammal, __gammal)
+# if USE_AS_COMPAT
+compat_symbol (libm, __lgammal_compat, lgammal, LGAMMA_OLD_VER);
+# else
+versioned_symbol (libm, __lgammal, lgammal, LGAMMA_NEW_VER);
+# endif
+# if GAMMA_ALIAS
+strong_alias (LGFUNC (__lgammal), __gammal)
 weak_alias (__gammal, gammal)
+# endif
+#endif
diff --git a/sysdeps/ia64/fpu/lgamma-compat.h b/sysdeps/ia64/fpu/lgamma-compat.h
new file mode 100644
index 0000000..f974839
--- /dev/null
+++ b/sysdeps/ia64/fpu/lgamma-compat.h
@@ -0,0 +1,42 @@
+/* ABI compatibility for lgamma functions.  ia64 version.
+   Copyright (C) 2015 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef IA64_LGAMMA_COMPAT_H
+#define IA64_LGAMMA_COMPAT_H 1
+
+#include <math/lgamma-compat.h>
+
+#undef LGFUNC
+#if USE_AS_COMPAT
+# define LGFUNC(FUNC) __ ## FUNC ## _compat
+#else
+# define LGFUNC(FUNC) __ieee754_ ## FUNC
+#endif
+
+#undef CALL_LGAMMA
+#define CALL_LGAMMA(TYPE, FUNC, ARG)				\
+  ({								\
+    TYPE lgamma_tmp;						\
+    extern int __signgam, signgam;				\
+    lgamma_tmp = FUNC ((ARG), &__signgam, sizeof (__signgam));	\
+    if (USE_AS_COMPAT)						\
+      signgam = __signgam;					\
+    lgamma_tmp;							\
+  })
+
+#endif /* lgamma-compat.h.  */
diff --git a/sysdeps/ia64/fpu/w_lgamma.c b/sysdeps/ia64/fpu/w_lgamma_main.c
similarity index 85%
rename from sysdeps/ia64/fpu/w_lgamma.c
rename to sysdeps/ia64/fpu/w_lgamma_main.c
index 2006d3e..6deffad 100644
--- a/sysdeps/ia64/fpu/w_lgamma.c
+++ b/sysdeps/ia64/fpu/w_lgamma_main.c
@@ -53,28 +53,21 @@
 
 #include "libm_support.h"
 
+#include <lgamma-compat.h>
 
 extern double __libm_lgamma(double /*x*/, int* /*signgam*/, int /*signgamsz*/);
 
 
-double __ieee754_lgamma(double x)
+double LGFUNC (lgamma) (double x)
 {
-#ifdef __POSIX__
-    extern int    signgam;
-#else
-    int    signgam;
-#endif
-    return __libm_lgamma(x, &signgam, sizeof(signgam));
+    return CALL_LGAMMA (double, __libm_lgamma, x);
 }
-weak_alias (__ieee754_lgamma, lgamma)
-
-double __ieee754_gamma(double x)
-{
-#ifdef __POSIX__
-    extern int    signgam;
+#if USE_AS_COMPAT
+compat_symbol (libm, __lgammaf_compat, lgammaf, LGAMMA_OLD_VER);
 #else
-    int    signgam;
+versioned_symbol (libm, __ieee754_lgammaf, lgammaf, LGAMMA_NEW_VER);
+#endif
+#if GAMMA_ALIAS
+strong_alias (LGFUNC (lgammaf), __ieee754_gammaf)
+weak_alias (__ieee754_gammaf, gammaf)
 #endif
-    return __libm_lgamma(x, &signgam, sizeof(signgam));
-}
-weak_alias (__ieee754_gamma, gamma)
diff --git a/sysdeps/ia64/fpu/w_lgammaf.c b/sysdeps/ia64/fpu/w_lgammaf_main.c
similarity index 86%
rename from sysdeps/ia64/fpu/w_lgammaf.c
rename to sysdeps/ia64/fpu/w_lgammaf_main.c
index cd0b4f6..d8e86a6 100644
--- a/sysdeps/ia64/fpu/w_lgammaf.c
+++ b/sysdeps/ia64/fpu/w_lgammaf_main.c
@@ -53,28 +53,21 @@
 
 #include "libm_support.h"
 
+#include <lgamma-compat.h>
 
 extern float  __libm_lgammaf(float /*x*/, int* /*signgam*/, int /*signgamsz*/);
 
 
-float __ieee754_lgammaf(float x)
+float LGFUNC (lgammaf) (float x)
 {
-#ifdef __POSIX__
-    extern int    signgam;
-#else
-    int    signgam;
-#endif
-    return __libm_lgammaf(x, &signgam, sizeof(signgam));
+    return CALL_LGAMMA (float, __libm_lgammaf, x);
 }
-weak_alias (__ieee754_lgammaf, lgammaf)
-
-float __ieee754_gammaf(float x)
-{
-#ifdef __POSIX__
-    extern int    signgam;
+#if USE_AS_COMPAT
+compat_symbol (libm, __lgammaf_compat, lgammaf, LGAMMA_OLD_VER);
 #else
-    int    signgam;
+versioned_symbol (libm, __ieee754_lgammaf, lgammaf, LGAMMA_NEW_VER);
 #endif
-    return __libm_lgammaf(x, &signgam, sizeof(signgam));
-}
+#if GAMMA_ALIAS
+strong_alias (LGFUNC (lgammaf), __ieee754_gammaf)
 weak_alias (__ieee754_gammaf, gammaf)
+#endif
diff --git a/sysdeps/ia64/fpu/w_lgammal.c b/sysdeps/ia64/fpu/w_lgammal_main.c
similarity index 85%
rename from sysdeps/ia64/fpu/w_lgammal.c
rename to sysdeps/ia64/fpu/w_lgammal_main.c
index e388529..5c73f33 100644
--- a/sysdeps/ia64/fpu/w_lgammal.c
+++ b/sysdeps/ia64/fpu/w_lgammal_main.c
@@ -55,25 +55,18 @@
 
 extern double __libm_lgammal(long double /*x*/, int* /*signgam*/, int /*signgamsz*/);
 
+#include <lgamma-compat.h>
 
-long double __ieee754_lgammal(long double x)
+long double LGFUNC (lgammal) (long double x)
 {
-#ifdef __POSIX__
-    extern int    signgam;
-#else
-    int    signgam;
-#endif
-    return __libm_lgammal(x, &signgam, sizeof(signgam));
+    return CALL_LGAMMA (long double, __libm_lgammal, x);
 }
-weak_alias (__ieee754_lgammal, lgammal)
-
-long double __ieee754_gammal(long double x)
-{
-#ifdef __POSIX__
-    extern int    signgam;
+#if USE_AS_COMPAT
+compat_symbol (libm, __lgammal_compat, lgammal, LGAMMA_OLD_VER);
 #else
-    int    signgam;
+versioned_symbol (libm, __ieee754_lgammal, lgammal, LGAMMA_NEW_VER);
 #endif
-    return __libm_lgammal(x, &signgam, sizeof(signgam));
-}
+#if GAMMA_ALIAS
+strong_alias (LGFUNC (lgammal), __ieee754_gammal)
 weak_alias (__ieee754_gammal, gammal)
+#endif
diff --git a/sysdeps/ieee754/ldbl-opt/w_lgamma.c b/sysdeps/ieee754/ldbl-opt/w_lgamma.c
deleted file mode 100644
index ef801c5..0000000
--- a/sysdeps/ieee754/ldbl-opt/w_lgamma.c
+++ /dev/null
@@ -1,6 +0,0 @@
-#include <math_ldbl_opt.h>
-#include <math/w_lgamma.c>
-#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)
-compat_symbol (libm, __lgamma, lgammal, GLIBC_2_0);
-compat_symbol (libm, __gamma, gammal, GLIBC_2_0);
-#endif
diff --git a/sysdeps/ieee754/ldbl-opt/w_lgamma_compat.c b/sysdeps/ieee754/ldbl-opt/w_lgamma_compat.c
new file mode 100644
index 0000000..f268e65
--- /dev/null
+++ b/sysdeps/ieee754/ldbl-opt/w_lgamma_compat.c
@@ -0,0 +1,7 @@
+#include <math_ldbl_opt.h>
+#include <math/w_lgamma_compat.c>
+#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)
+strong_alias (__lgamma_compat, __lgammal_dbl_compat)
+compat_symbol (libm, __lgammal_dbl_compat, lgammal, GLIBC_2_0);
+compat_symbol (libm, __gamma, gammal, GLIBC_2_0);
+#endif
diff --git a/sysdeps/ieee754/ldbl-opt/w_lgamma_compatl.c b/sysdeps/ieee754/ldbl-opt/w_lgamma_compatl.c
new file mode 100644
index 0000000..f60b3d7
--- /dev/null
+++ b/sysdeps/ieee754/ldbl-opt/w_lgamma_compatl.c
@@ -0,0 +1,11 @@
+#include <math_ldbl_opt.h>
+#undef weak_alias
+#define weak_alias(n,a)
+#define USE_AS_COMPAT 1
+#include <math/lgamma-compat.h>
+#undef LGAMMA_OLD_VER
+#define LGAMMA_OLD_VER LONG_DOUBLE_COMPAT_VERSION
+#include <math/w_lgamma_compatl.c>
+#if GAMMA_ALIAS
+long_double_symbol (libm, __gammal, gammal);
+#endif
diff --git a/sysdeps/ieee754/ldbl-opt/w_lgammal.c b/sysdeps/ieee754/ldbl-opt/w_lgammal.c
deleted file mode 100644
index 9de7ec8..0000000
--- a/sysdeps/ieee754/ldbl-opt/w_lgammal.c
+++ /dev/null
@@ -1,6 +0,0 @@
-#include <math_ldbl_opt.h>
-#undef weak_alias
-#define weak_alias(n,a)
-#include <math/w_lgammal.c>
-long_double_symbol (libm, __lgammal, lgammal);
-long_double_symbol (libm, __gammal, gammal);
diff --git a/sysdeps/ieee754/s_signgam.c b/sysdeps/ieee754/s_signgam.c
index ee207d6..9af3a75 100644
--- a/sysdeps/ieee754/s_signgam.c
+++ b/sysdeps/ieee754/s_signgam.c
@@ -1,3 +1,4 @@
 #include <math.h>
 #include <math_private.h>
-int signgam;
+int __signgam = 0;
+weak_alias (__signgam, signgam)
diff --git a/sysdeps/nacl/libm.abilist b/sysdeps/nacl/libm.abilist
index d1fd77a..055b0b2 100644
--- a/sysdeps/nacl/libm.abilist
+++ b/sysdeps/nacl/libm.abilist
@@ -367,3 +367,8 @@ GLIBC_2.22 y1l F
 GLIBC_2.22 yn F
 GLIBC_2.22 ynf F
 GLIBC_2.22 ynl F
+GLIBC_2.23 GLIBC_2.23 A
+GLIBC_2.23 __signgam D 0x4
+GLIBC_2.23 lgamma F
+GLIBC_2.23 lgammaf F
+GLIBC_2.23 lgammal F
diff --git a/sysdeps/unix/sysv/linux/aarch64/libm.abilist b/sysdeps/unix/sysv/linux/aarch64/libm.abilist
index ead20e1..2123113 100644
--- a/sysdeps/unix/sysv/linux/aarch64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/aarch64/libm.abilist
@@ -398,3 +398,8 @@ GLIBC_2.18 GLIBC_2.18 A
 GLIBC_2.18 __issignaling F
 GLIBC_2.18 __issignalingf F
 GLIBC_2.18 __issignalingl F
+GLIBC_2.23 GLIBC_2.23 A
+GLIBC_2.23 __signgam D 0x4
+GLIBC_2.23 lgamma F
+GLIBC_2.23 lgammaf F
+GLIBC_2.23 lgammal F
diff --git a/sysdeps/unix/sysv/linux/alpha/libm.abilist b/sysdeps/unix/sysv/linux/alpha/libm.abilist
index 80838d3..611dfe1 100644
--- a/sysdeps/unix/sysv/linux/alpha/libm.abilist
+++ b/sysdeps/unix/sysv/linux/alpha/libm.abilist
@@ -408,6 +408,11 @@ GLIBC_2.2 feraiseexcept F
 GLIBC_2.2 fesetenv F
 GLIBC_2.2 fesetexceptflag F
 GLIBC_2.2 feupdateenv F
+GLIBC_2.23 GLIBC_2.23 A
+GLIBC_2.23 __signgam D 0x4
+GLIBC_2.23 lgamma F
+GLIBC_2.23 lgammaf F
+GLIBC_2.23 lgammal F
 GLIBC_2.3.4 GLIBC_2.3.4 A
 GLIBC_2.3.4 __c1_cabsf F
 GLIBC_2.3.4 __c1_cacosf F
diff --git a/sysdeps/unix/sysv/linux/arm/libm.abilist b/sysdeps/unix/sysv/linux/arm/libm.abilist
index be96e95..e65e230 100644
--- a/sysdeps/unix/sysv/linux/arm/libm.abilist
+++ b/sysdeps/unix/sysv/linux/arm/libm.abilist
@@ -56,6 +56,11 @@ GLIBC_2.15 __ynf_finite F
 GLIBC_2.18 GLIBC_2.18 A
 GLIBC_2.18 __issignaling F
 GLIBC_2.18 __issignalingf F
+GLIBC_2.23 GLIBC_2.23 A
+GLIBC_2.23 __signgam D 0x4
+GLIBC_2.23 lgamma F
+GLIBC_2.23 lgammaf F
+GLIBC_2.23 lgammal F
 GLIBC_2.4 GLIBC_2.4 A
 GLIBC_2.4 _LIB_VERSION D 0x4
 GLIBC_2.4 __clog10 F
diff --git a/sysdeps/unix/sysv/linux/hppa/libm.abilist b/sysdeps/unix/sysv/linux/hppa/libm.abilist
index 3304e6e..9b7f40a 100644
--- a/sysdeps/unix/sysv/linux/hppa/libm.abilist
+++ b/sysdeps/unix/sysv/linux/hppa/libm.abilist
@@ -368,5 +368,10 @@ GLIBC_2.2 y1l F
 GLIBC_2.2 yn F
 GLIBC_2.2 ynf F
 GLIBC_2.2 ynl F
+GLIBC_2.23 GLIBC_2.23 A
+GLIBC_2.23 __signgam D 0x4
+GLIBC_2.23 lgamma F
+GLIBC_2.23 lgammaf F
+GLIBC_2.23 lgammal F
 GLIBC_2.4 GLIBC_2.4 A
 GLIBC_2.4 exp2l F
diff --git a/sysdeps/unix/sysv/linux/i386/libm.abilist b/sysdeps/unix/sysv/linux/i386/libm.abilist
index e049a67..78b542e 100644
--- a/sysdeps/unix/sysv/linux/i386/libm.abilist
+++ b/sysdeps/unix/sysv/linux/i386/libm.abilist
@@ -410,4 +410,9 @@ GLIBC_2.2 feraiseexcept F
 GLIBC_2.2 fesetenv F
 GLIBC_2.2 fesetexceptflag F
 GLIBC_2.2 feupdateenv F
+GLIBC_2.23 GLIBC_2.23 A
+GLIBC_2.23 __signgam D 0x4
+GLIBC_2.23 lgamma F
+GLIBC_2.23 lgammaf F
+GLIBC_2.23 lgammal F
 GLIBC_2.4 GLIBC_2.4 A
diff --git a/sysdeps/unix/sysv/linux/ia64/libm.abilist b/sysdeps/unix/sysv/linux/ia64/libm.abilist
index 39eafb8..6d4cc72 100644
--- a/sysdeps/unix/sysv/linux/ia64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/ia64/libm.abilist
@@ -339,4 +339,9 @@ GLIBC_2.2 ynl F
 GLIBC_2.2.3 GLIBC_2.2.3 A
 GLIBC_2.2.3 matherrf F
 GLIBC_2.2.3 matherrl F
+GLIBC_2.23 GLIBC_2.23 A
+GLIBC_2.23 __signgam D 0x4
+GLIBC_2.23 lgamma F
+GLIBC_2.23 lgammaf F
+GLIBC_2.23 lgammal F
 GLIBC_2.4 GLIBC_2.4 A
diff --git a/sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist b/sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist
index be96e95..e65e230 100644
--- a/sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist
+++ b/sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist
@@ -56,6 +56,11 @@ GLIBC_2.15 __ynf_finite F
 GLIBC_2.18 GLIBC_2.18 A
 GLIBC_2.18 __issignaling F
 GLIBC_2.18 __issignalingf F
+GLIBC_2.23 GLIBC_2.23 A
+GLIBC_2.23 __signgam D 0x4
+GLIBC_2.23 lgamma F
+GLIBC_2.23 lgammaf F
+GLIBC_2.23 lgammal F
 GLIBC_2.4 GLIBC_2.4 A
 GLIBC_2.4 _LIB_VERSION D 0x4
 GLIBC_2.4 __clog10 F
diff --git a/sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist b/sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist
index 48ce23e..2d31935 100644
--- a/sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist
+++ b/sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist
@@ -408,4 +408,9 @@ GLIBC_2.2 feraiseexcept F
 GLIBC_2.2 fesetenv F
 GLIBC_2.2 fesetexceptflag F
 GLIBC_2.2 feupdateenv F
+GLIBC_2.23 GLIBC_2.23 A
+GLIBC_2.23 __signgam D 0x4
+GLIBC_2.23 lgamma F
+GLIBC_2.23 lgammaf F
+GLIBC_2.23 lgammal F
 GLIBC_2.4 GLIBC_2.4 A
diff --git a/sysdeps/unix/sysv/linux/microblaze/libm.abilist b/sysdeps/unix/sysv/linux/microblaze/libm.abilist
index 15193f2..149fd4f 100644
--- a/sysdeps/unix/sysv/linux/microblaze/libm.abilist
+++ b/sysdeps/unix/sysv/linux/microblaze/libm.abilist
@@ -367,3 +367,8 @@ GLIBC_2.18 y1l F
 GLIBC_2.18 yn F
 GLIBC_2.18 ynf F
 GLIBC_2.18 ynl F
+GLIBC_2.23 GLIBC_2.23 A
+GLIBC_2.23 __signgam D 0x4
+GLIBC_2.23 lgamma F
+GLIBC_2.23 lgammaf F
+GLIBC_2.23 lgammal F
diff --git a/sysdeps/unix/sysv/linux/mips/mips32/libm.abilist b/sysdeps/unix/sysv/linux/mips/mips32/libm.abilist
index b285c9b..e599e82 100644
--- a/sysdeps/unix/sysv/linux/mips/mips32/libm.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips32/libm.abilist
@@ -369,6 +369,11 @@ GLIBC_2.2 tgammal F
 GLIBC_2.2 trunc F
 GLIBC_2.2 truncf F
 GLIBC_2.2 truncl F
+GLIBC_2.23 GLIBC_2.23 A
+GLIBC_2.23 __signgam D 0x4
+GLIBC_2.23 lgamma F
+GLIBC_2.23 lgammaf F
+GLIBC_2.23 lgammal F
 GLIBC_2.4 GLIBC_2.4 A
 GLIBC_2.4 exp2l F
 _gp_disp _gp_disp A
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/libm.abilist b/sysdeps/unix/sysv/linux/mips/mips64/libm.abilist
index ff42af1..164ba55 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips64/libm.abilist
@@ -400,4 +400,9 @@ GLIBC_2.2 tgammal F
 GLIBC_2.2 trunc F
 GLIBC_2.2 truncf F
 GLIBC_2.2 truncl F
+GLIBC_2.23 GLIBC_2.23 A
+GLIBC_2.23 __signgam D 0x4
+GLIBC_2.23 lgamma F
+GLIBC_2.23 lgammaf F
+GLIBC_2.23 lgammal F
 GLIBC_2.4 GLIBC_2.4 A
diff --git a/sysdeps/unix/sysv/linux/nios2/libm.abilist b/sysdeps/unix/sysv/linux/nios2/libm.abilist
index dae4f5e..ad02eff 100644
--- a/sysdeps/unix/sysv/linux/nios2/libm.abilist
+++ b/sysdeps/unix/sysv/linux/nios2/libm.abilist
@@ -367,3 +367,8 @@ GLIBC_2.21 y1l F
 GLIBC_2.21 yn F
 GLIBC_2.21 ynf F
 GLIBC_2.21 ynl F
+GLIBC_2.23 GLIBC_2.23 A
+GLIBC_2.23 __signgam D 0x4
+GLIBC_2.23 lgamma F
+GLIBC_2.23 lgammaf F
+GLIBC_2.23 lgammal F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist
index e18a51a..5d2f263 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist
@@ -409,6 +409,11 @@ GLIBC_2.2 feraiseexcept F
 GLIBC_2.2 fesetenv F
 GLIBC_2.2 fesetexceptflag F
 GLIBC_2.2 feupdateenv F
+GLIBC_2.23 GLIBC_2.23 A
+GLIBC_2.23 __signgam D 0x4
+GLIBC_2.23 lgamma F
+GLIBC_2.23 lgammaf F
+GLIBC_2.23 lgammal F
 GLIBC_2.4 GLIBC_2.4 A
 GLIBC_2.4 __clog10l F
 GLIBC_2.4 __finitel F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist
index 90bfd19..8b5edb5 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist
@@ -408,6 +408,11 @@ GLIBC_2.2 feraiseexcept F
 GLIBC_2.2 fesetenv F
 GLIBC_2.2 fesetexceptflag F
 GLIBC_2.2 feupdateenv F
+GLIBC_2.23 GLIBC_2.23 A
+GLIBC_2.23 __signgam D 0x4
+GLIBC_2.23 lgamma F
+GLIBC_2.23 lgammaf F
+GLIBC_2.23 lgammal F
 GLIBC_2.4 GLIBC_2.4 A
 GLIBC_2.4 __clog10l F
 GLIBC_2.4 __finitel F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist
index df3457a..ee06683 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist
@@ -403,3 +403,8 @@ GLIBC_2.18 GLIBC_2.18 A
 GLIBC_2.18 __issignaling F
 GLIBC_2.18 __issignalingf F
 GLIBC_2.18 __issignalingl F
+GLIBC_2.23 GLIBC_2.23 A
+GLIBC_2.23 __signgam D 0x4
+GLIBC_2.23 lgamma F
+GLIBC_2.23 lgammaf F
+GLIBC_2.23 lgammal F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist
index ee01f69..6c7fc9b 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist
@@ -84,6 +84,11 @@ GLIBC_2.18 GLIBC_2.18 A
 GLIBC_2.18 __issignaling F
 GLIBC_2.18 __issignalingf F
 GLIBC_2.18 __issignalingl F
+GLIBC_2.23 GLIBC_2.23 A
+GLIBC_2.23 __signgam D 0x4
+GLIBC_2.23 lgamma F
+GLIBC_2.23 lgammaf F
+GLIBC_2.23 lgammal F
 GLIBC_2.3 GLIBC_2.3 A
 GLIBC_2.3 _LIB_VERSION D 0x4
 GLIBC_2.3 __clog10 F
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist b/sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist
index e14605b..039ed5c 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist
@@ -398,6 +398,11 @@ GLIBC_2.2 GLIBC_2.2 A
 GLIBC_2.2 fedisableexcept F
 GLIBC_2.2 feenableexcept F
 GLIBC_2.2 fegetexcept F
+GLIBC_2.23 GLIBC_2.23 A
+GLIBC_2.23 __signgam D 0x4
+GLIBC_2.23 lgamma F
+GLIBC_2.23 lgammaf F
+GLIBC_2.23 lgammal F
 GLIBC_2.4 GLIBC_2.4 A
 GLIBC_2.4 __clog10l F
 GLIBC_2.4 __finitel F
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist b/sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist
index b5abd13..66c625d 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist
@@ -396,6 +396,11 @@ GLIBC_2.2 y1l F
 GLIBC_2.2 yn F
 GLIBC_2.2 ynf F
 GLIBC_2.2 ynl F
+GLIBC_2.23 GLIBC_2.23 A
+GLIBC_2.23 __signgam D 0x4
+GLIBC_2.23 lgamma F
+GLIBC_2.23 lgammaf F
+GLIBC_2.23 lgammal F
 GLIBC_2.4 GLIBC_2.4 A
 GLIBC_2.4 __clog10l F
 GLIBC_2.4 __finitel F
diff --git a/sysdeps/unix/sysv/linux/sh/libm.abilist b/sysdeps/unix/sysv/linux/sh/libm.abilist
index 6fabd47..93b8471 100644
--- a/sysdeps/unix/sysv/linux/sh/libm.abilist
+++ b/sysdeps/unix/sysv/linux/sh/libm.abilist
@@ -368,5 +368,10 @@ GLIBC_2.2 y1l F
 GLIBC_2.2 yn F
 GLIBC_2.2 ynf F
 GLIBC_2.2 ynl F
+GLIBC_2.23 GLIBC_2.23 A
+GLIBC_2.23 __signgam D 0x4
+GLIBC_2.23 lgamma F
+GLIBC_2.23 lgammaf F
+GLIBC_2.23 lgammal F
 GLIBC_2.4 GLIBC_2.4 A
 GLIBC_2.4 exp2l F
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist b/sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist
index 2a5f5c7..d50ef4a 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist
@@ -400,6 +400,11 @@ GLIBC_2.2 feraiseexcept F
 GLIBC_2.2 fesetenv F
 GLIBC_2.2 fesetexceptflag F
 GLIBC_2.2 feupdateenv F
+GLIBC_2.23 GLIBC_2.23 A
+GLIBC_2.23 __signgam D 0x4
+GLIBC_2.23 lgamma F
+GLIBC_2.23 lgammaf F
+GLIBC_2.23 lgammal F
 GLIBC_2.4 GLIBC_2.4 A
 GLIBC_2.4 __clog10l F
 GLIBC_2.4 __finitel F
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist b/sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist
index 80784c9..b56add3 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist
@@ -399,4 +399,9 @@ GLIBC_2.2 y1l F
 GLIBC_2.2 yn F
 GLIBC_2.2 ynf F
 GLIBC_2.2 ynl F
+GLIBC_2.23 GLIBC_2.23 A
+GLIBC_2.23 __signgam D 0x4
+GLIBC_2.23 lgamma F
+GLIBC_2.23 lgammaf F
+GLIBC_2.23 lgammal F
 GLIBC_2.4 GLIBC_2.4 A
diff --git a/sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist b/sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist
index df50da5..18b8d00 100644
--- a/sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist
+++ b/sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist
@@ -368,3 +368,8 @@ GLIBC_2.15 __ynf_finite F
 GLIBC_2.18 GLIBC_2.18 A
 GLIBC_2.18 __issignaling F
 GLIBC_2.18 __issignalingf F
+GLIBC_2.23 GLIBC_2.23 A
+GLIBC_2.23 __signgam D 0x4
+GLIBC_2.23 lgamma F
+GLIBC_2.23 lgammaf F
+GLIBC_2.23 lgammal F
diff --git a/sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist b/sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist
index df50da5..18b8d00 100644
--- a/sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist
@@ -368,3 +368,8 @@ GLIBC_2.15 __ynf_finite F
 GLIBC_2.18 GLIBC_2.18 A
 GLIBC_2.18 __issignaling F
 GLIBC_2.18 __issignalingf F
+GLIBC_2.23 GLIBC_2.23 A
+GLIBC_2.23 __signgam D 0x4
+GLIBC_2.23 lgamma F
+GLIBC_2.23 lgammaf F
+GLIBC_2.23 lgammal F
diff --git a/sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist b/sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist
index df50da5..18b8d00 100644
--- a/sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist
+++ b/sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist
@@ -368,3 +368,8 @@ GLIBC_2.15 __ynf_finite F
 GLIBC_2.18 GLIBC_2.18 A
 GLIBC_2.18 __issignaling F
 GLIBC_2.18 __issignalingf F
+GLIBC_2.23 GLIBC_2.23 A
+GLIBC_2.23 __signgam D 0x4
+GLIBC_2.23 lgamma F
+GLIBC_2.23 lgammaf F
+GLIBC_2.23 lgammal F
diff --git a/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist b/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist
index a2cb742..b911aff 100644
--- a/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist
@@ -399,4 +399,9 @@ GLIBC_2.2.5 y1l F
 GLIBC_2.2.5 yn F
 GLIBC_2.2.5 ynf F
 GLIBC_2.2.5 ynl F
+GLIBC_2.23 GLIBC_2.23 A
+GLIBC_2.23 __signgam D 0x4
+GLIBC_2.23 lgamma F
+GLIBC_2.23 lgammaf F
+GLIBC_2.23 lgammal F
 GLIBC_2.4 GLIBC_2.4 A
diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist b/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist
index 4d37717..168c0d8 100644
--- a/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist
@@ -398,3 +398,8 @@ GLIBC_2.18 GLIBC_2.18 A
 GLIBC_2.18 __issignaling F
 GLIBC_2.18 __issignalingf F
 GLIBC_2.18 __issignalingl F
+GLIBC_2.23 GLIBC_2.23 A
+GLIBC_2.23 __signgam D 0x4
+GLIBC_2.23 lgamma F
+GLIBC_2.23 lgammaf F
+GLIBC_2.23 lgammal F

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog                                          |  125 ++++++++++++++++++++
 NEWS                                               |    6 +
 conform/linknamespace.pl                           |    4 +-
 include/math.h                                     |    2 +
 math/Makefile                                      |   24 ++++-
 math/Versions                                      |    7 +
 math/lgamma-compat.h                               |   73 ++++++++++++
 math/test-signgam-main.c                           |   71 +++++++++++
 math/test-signgam-uchar-init-static.c              |    1 +
 math/test-signgam-uchar-init.c                     |    3 +
 math/test-signgam-uchar-static.c                   |    1 +
 math/test-signgam-uchar.c                          |    3 +
 math/test-signgam-uint-init-static.c               |    1 +
 math/test-signgam-uint-init.c                      |    3 +
 math/test-signgam-uint-static.c                    |    1 +
 math/test-signgam-uint.c                           |    3 +
 math/test-signgam-ullong-init-static.c             |    1 +
 math/test-signgam-ullong-init.c                    |    3 +
 math/test-signgam-ullong-static.c                  |    1 +
 math/test-signgam-ullong.c                         |    3 +
 math/w_lgamma.c                                    |   51 +--------
 math/w_lgamma_compat.c                             |    2 +
 math/w_lgamma_compatf.c                            |    2 +
 math/w_lgamma_compatl.c                            |    2 +
 math/w_lgamma_main.c                               |   59 +++++++++
 math/w_lgammaf.c                                   |   42 +------
 math/w_lgammaf_main.c                              |   44 +++++++
 math/w_lgammal.c                                   |   49 +--------
 math/w_lgammal_main.c                              |   51 ++++++++
 sysdeps/ia64/fpu/lgamma-compat.h                   |   42 +++++++
 sysdeps/ia64/fpu/w_lgamma.c                        |   80 -------------
 sysdeps/ia64/fpu/w_lgamma_main.c                   |   73 ++++++++++++
 sysdeps/ia64/fpu/w_lgammaf.c                       |   80 -------------
 sysdeps/ia64/fpu/w_lgammaf_main.c                  |   73 ++++++++++++
 sysdeps/ia64/fpu/w_lgammal.c                       |   79 ------------
 sysdeps/ia64/fpu/w_lgammal_main.c                  |   72 +++++++++++
 sysdeps/ieee754/ldbl-opt/w_lgamma.c                |    6 -
 sysdeps/ieee754/ldbl-opt/w_lgamma_compat.c         |    7 +
 sysdeps/ieee754/ldbl-opt/w_lgamma_compatl.c        |   11 ++
 sysdeps/ieee754/ldbl-opt/w_lgammal.c               |    6 -
 sysdeps/ieee754/s_signgam.c                        |    3 +-
 sysdeps/nacl/libm.abilist                          |    5 +
 sysdeps/unix/sysv/linux/aarch64/libm.abilist       |    5 +
 sysdeps/unix/sysv/linux/alpha/libm.abilist         |    5 +
 sysdeps/unix/sysv/linux/arm/libm.abilist           |    5 +
 sysdeps/unix/sysv/linux/hppa/libm.abilist          |    5 +
 sysdeps/unix/sysv/linux/i386/libm.abilist          |    5 +
 sysdeps/unix/sysv/linux/ia64/libm.abilist          |    5 +
 sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist |    5 +
 sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist   |    5 +
 sysdeps/unix/sysv/linux/microblaze/libm.abilist    |    5 +
 sysdeps/unix/sysv/linux/mips/mips32/libm.abilist   |    5 +
 sysdeps/unix/sysv/linux/mips/mips64/libm.abilist   |    5 +
 sysdeps/unix/sysv/linux/nios2/libm.abilist         |    5 +
 .../sysv/linux/powerpc/powerpc32/fpu/libm.abilist  |    5 +
 .../linux/powerpc/powerpc32/nofpu/libm.abilist     |    5 +
 .../sysv/linux/powerpc/powerpc64/libm-le.abilist   |    5 +
 .../unix/sysv/linux/powerpc/powerpc64/libm.abilist |    5 +
 sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist  |    5 +
 sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist  |    5 +
 sysdeps/unix/sysv/linux/sh/libm.abilist            |    5 +
 sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist |    5 +
 sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist |    5 +
 .../sysv/linux/tile/tilegx/tilegx32/libm.abilist   |    5 +
 .../sysv/linux/tile/tilegx/tilegx64/libm.abilist   |    5 +
 sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist  |    5 +
 sysdeps/unix/sysv/linux/x86_64/64/libm.abilist     |    5 +
 sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist    |    5 +
 68 files changed, 911 insertions(+), 394 deletions(-)
 create mode 100644 math/lgamma-compat.h
 create mode 100644 math/test-signgam-main.c
 create mode 100644 math/test-signgam-uchar-init-static.c
 create mode 100644 math/test-signgam-uchar-init.c
 create mode 100644 math/test-signgam-uchar-static.c
 create mode 100644 math/test-signgam-uchar.c
 create mode 100644 math/test-signgam-uint-init-static.c
 create mode 100644 math/test-signgam-uint-init.c
 create mode 100644 math/test-signgam-uint-static.c
 create mode 100644 math/test-signgam-uint.c
 create mode 100644 math/test-signgam-ullong-init-static.c
 create mode 100644 math/test-signgam-ullong-init.c
 create mode 100644 math/test-signgam-ullong-static.c
 create mode 100644 math/test-signgam-ullong.c
 create mode 100644 math/w_lgamma_compat.c
 create mode 100644 math/w_lgamma_compatf.c
 create mode 100644 math/w_lgamma_compatl.c
 create mode 100644 math/w_lgamma_main.c
 create mode 100644 math/w_lgammaf_main.c
 create mode 100644 math/w_lgammal_main.c
 create mode 100644 sysdeps/ia64/fpu/lgamma-compat.h
 delete mode 100644 sysdeps/ia64/fpu/w_lgamma.c
 create mode 100644 sysdeps/ia64/fpu/w_lgamma_main.c
 delete mode 100644 sysdeps/ia64/fpu/w_lgammaf.c
 create mode 100644 sysdeps/ia64/fpu/w_lgammaf_main.c
 delete mode 100644 sysdeps/ia64/fpu/w_lgammal.c
 create mode 100644 sysdeps/ia64/fpu/w_lgammal_main.c
 delete mode 100644 sysdeps/ieee754/ldbl-opt/w_lgamma.c
 create mode 100644 sysdeps/ieee754/ldbl-opt/w_lgamma_compat.c
 create mode 100644 sysdeps/ieee754/ldbl-opt/w_lgamma_compatl.c
 delete mode 100644 sysdeps/ieee754/ldbl-opt/w_lgammal.c


hooks/post-receive
-- 
GNU C Library master sources



More information about the Glibc-cvs mailing list